1 . 已知抛物线
的焦点F与双曲线
=1的右焦点重合,该抛物线的准线与x轴的交点为K,点A在抛物线上且
,则A点的横坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae1ca77e4b289506e0de7bf4c5f027b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643e812a49e1d83b0d81b2fbaeca624f.png)
A.![]() | B.2 | C.![]() | D.5 |
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2 . 已知曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14824085f8aaf60862772507c03c1a9.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() |
D.存在实数![]() ![]() |
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